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| author | Felix Kuehling <Felix.Kuehling@amd.com> | 2017-04-20 14:41:34 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-05-24 18:22:50 -0400 |
| commit | e7f78b69aba479728865ef3ec4229b372fc79f94 (patch) | |
| tree | 2b83271bce7ba877bc81d2b26e414237d7c27d61 | |
| parent | 9c2e1ae3ae2fe4759359d76f1e639e0eb4f79030 (diff) | |
| download | linux-e7f78b69aba479728865ef3ec4229b372fc79f94.tar.bz2 | |
drm/radeon: Add module param to control CIK support
If AMDGPU supports CIK, add a module parameter to control CIK
support in radeon. It's off by default in radeon, while it will be
on by default in AMDGPU.
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Acked-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon.h | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_drv.c | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_kms.c | 18 |
3 files changed, 28 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index c1c8e2208a21..0a0341528471 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -116,6 +116,10 @@ extern int radeon_mst; extern int radeon_uvd; extern int radeon_vce; +#ifdef CONFIG_DRM_AMDGPU_CIK +extern int radeon_cik_support; +#endif + /* * Copy from radeon_drv.h so we don't have to include both and have conflicting * symbol; diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index ef8a75940980..acb37386c9f8 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -295,6 +295,12 @@ module_param_named(uvd, radeon_uvd, int, 0444); MODULE_PARM_DESC(vce, "vce enable/disable vce support (1 = enable, 0 = disable)"); module_param_named(vce, radeon_vce, int, 0444); +#ifdef CONFIG_DRM_AMDGPU_CIK +int radeon_cik_support = 0; +MODULE_PARM_DESC(cik_support, "CIK support (1 = enabled, 0 = disabled (default))"); +module_param_named(cik_support, radeon_cik_support, int, 0444); +#endif + static struct pci_device_id pciidlist[] = { radeon_PCI_IDS }; diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c index 6a68d440bc44..f0abba3caac2 100644 --- a/drivers/gpu/drm/radeon/radeon_kms.c +++ b/drivers/gpu/drm/radeon/radeon_kms.c @@ -98,6 +98,24 @@ int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags) struct radeon_device *rdev; int r, acpi_status; +#ifdef CONFIG_DRM_AMDGPU_CIK + if (!radeon_cik_support) { + switch (flags & RADEON_FAMILY_MASK) { + case CHIP_KAVERI: + case CHIP_BONAIRE: + case CHIP_HAWAII: + case CHIP_KABINI: + case CHIP_MULLINS: + dev_info(dev->dev, + "CIK support provided by amdgpu.\n"); + dev_info(dev->dev, + "Use radeon.cik_support=1 amdgpu.cik_support=0 to override.\n" + ); + return -ENODEV; + } + } +#endif + rdev = kzalloc(sizeof(struct radeon_device), GFP_KERNEL); if (rdev == NULL) { return -ENOMEM; |